... Ceiling steel-plastic grid for coal mine 1.Mesh width: 4. ... mainly manufacture geogrids, geotextile, geomembrane,double-resistance grids for mining, high-pressure oil tubing, waterproof ... cooling,welding etc techniques, to form square grids with whole structure.Specifications: JD GS+PP ... product of plastic weaving grids and steel wire grids. Production line Ceiling steel-plastic grid for coal mine